The Spanish football programme El chiringuito de Jugones from La Sexta reports that Vinicius will leave in January if his situation doesn't change.
El chiringuito de Jugones:
🚨 𝗝𝗨𝗦𝗧 𝗜𝗡: If the situation with Vinícius Junior does not change and the player does not feel important in the team, he could leave in January.